Sealyham Terrier puppy weight calculator

Sealyham Terrier adults usually weigh about 23 to 24 lb and are close to full size by about 12 months. A typical 12-week-old Sealyham Terrier weighs about 7 lb.

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Adult weight: about 23 to 24 lb (medium)

8 to 52 weeks

In pounds

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Sealyham Terrier adults usually weigh

about 23 to 24 lb

At 12 weeks, Sealyham Terrier puppies are typically about 30% of their adult weight, with most of their growing still ahead.

Typical puppy growth curveTypical weight from 8 weeks to 65 weeks, rising to 23 to 24 pounds as an adult. Your puppy: 7 pounds at 12 weeks.010203081626395265Age in weeksWeight (lb)
Typical range Your puppy today

Estimates vary, and every puppy grows at their own pace. Ask your vet about your puppy’s growth.

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Typical Sealyham Terrier weight by age

AgeTypical weight
8 weeks4.5 lb
12 weeks7 lb
16 weeks9.5 to 10 lb
5 months12 to 13 lb
6 months14 to 15 lb
9 months20 lb
12 months22 to 23 lb
18 months23 to 24 lb

Puppies sit above and below these figures, and every puppy grows at their own pace. Ask your vet about your puppy’s growth.

Sealyham Terrier questions

How big will my Sealyham Terrier get?

Most Sealyham Terrier adults weigh about 23 to 24 lb. Individual dogs vary, and the parents' size is often a helpful guide.

When do Sealyham Terrier puppies stop growing?

Sealyham Terrier puppies are usually close to adult weight by about 12 months. At 6 months a typical Sealyham Terrier weighs about 14 to 15 lb, around 63% of adult weight.

How much does a 12-week-old Sealyham Terrier weigh?

Typically about 7 lb, and by 16 weeks about 9.5 to 10 lb. Puppies sit above and below these figures, and every puppy grows at their own pace. If you have questions about your puppy's growth, ask your vet.

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